He stems from Youngberg's dislike of the use of magic in the super hero genre. That's why he thinks stage magic tricks are cool, but real magic is a big cheat. For my part, I modeled his outfit a little on my idea of Rincewind from Discworld. It was also my idea to have him be Tom Kenny doing a Charles Nelson Reilly homage. He's very probably a protrusion or aspect of the Amazing Mumbo into the Ben 10 reality.